Biosorption of Pb(II) and Cd(II) ions by Agave sisalana (sisal fiber)

Santos, Walter Nei Lopes dos; Cavalcante, Dannuza D.; Silva, Erik Galvão Paranhos da; Virgens, Cesário Francisco das; Dias, Fábio de S.

doi:10.1016/j.microc.2010.09.014

Cited by 74 publications

(21 citation statements)

References 21 publications

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“…The broad bean peel has proven to possess the maximum adsorption capacity for Cd (II). Moreover, sisal fibre (Agave sisalana) was used as a biosorbent for removal of Pb (II) and Cd (II) ions from natural waters [122].…”

Section: Adsorption Of Adsorbents Produced From Agriculture Productsmentioning

confidence: 99%

Review of Eco-Friendly Biochar Used in the Removal of Trace Metals on Aqueous Phases

Duwiejuah¹,

Cobbina²,

Bakobie³

2017

IJEBB

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Eco-friendly biochar produced from cost-effective and readily available agricultural waste will likely pose no threat on the aqueous phases, other environmental media, human health and emission of greenhouse gases to the atmosphere. Optimising biochar for an intended application could require careful selection of a biomass feedstock as well as production pyrolysis technique and conditions for the production of biochars with specific characteristics. Previous studies have explores the relationships that exist between biochar production conditions, characteristics, and possible end-uses of biochar. This review provides an overview of the production and utilisation of biochar as absorbents for adsorption of trace metals in contaminated aqueous environment. Biochar has great affinity to adsorb molecular ions that is making it possible to be used for various toxicological remediation strategies. It has proven effective and useful for mitigating aqueous metals, organic compounds, suspended solids, and organic hydrocarbons in a various kind of industrial applications such as urban and residential storm water runoff, landfill leachates, industrial runoff, resource extraction runoff, and industrial wastewater filtration. Specifically designed biochar could be very effective in the removal of trace metals from contaminated aqueous environment. The multiple factors that determine the adsorption of the trace metals in aqueous environment or phases needs to be carefully examined. Cost-effectiveness of biomass feedstock and eco-friendliness of techniques need to also be given much consideration by way of making comparison with existing contaminant mitigation technologies. Keywords: aqueous phases, biochar, cost-effective, biomass feedstock, removal, trace metalsCite This Article: A. B. Duwiejuah, S.

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Section: Adsorption Of Adsorbents Produced From Agriculture Productsmentioning

confidence: 99%

Review of Eco-Friendly Biochar Used in the Removal of Trace Metals on Aqueous Phases

Duwiejuah¹,

Cobbina²,

Bakobie³

2017

IJEBB

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“…The major factors affecting the adsorption process consist of pore size, pore distribution, surface area and surface chemistry of the adsorbent. As shown in Table 1, different adsorbents have been applied for the adsorption of lead and cadmium from aqueous solutions 1,9-10, [14][15][16][17][18] . Silica aerogels having high porous structure (up to 99%), high specifi c surface area (500-1000 m 2 /g) and low density (as low as 5 kg/m 3 ) show high adsorption capacities which are similar or even higher than the traditionally used adsorbents…”

Section: -2mentioning

confidence: 99%

Performance of silica aerogels modified with amino functional groups in PB(II) and CD(II) removal from aqueous solutions

Faghihian

Nourmoradi

Maryam

2012

Polish Journal of Chemical Technology

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The adsorption behavior of Pb(II) and Cd(II) ions in aqueous solutions on silica aerogels modifi ed with amino propyl triethoxysilane was investigated as a function of pH, contact time, adsorbate concentration and adsorbent dose. It was found that maximum adsorption of Pb(II) and Cd(II) ions occurs at pH 6.0 and pH 8.0, respectively. The optimum contact time to obtain equilibrium adsorption with the modifi ed silica aerogel was experimentally found to be around 48h. Adsorption isotherms clearly indicated that the adsorption behavior of metals ions on the modifi ed silica aerogels is fi tted well with both the Langmuir and Freundlich isotherms. The maximum adsorption capacities of Pb(II) and Cd(II) on modifi ed silica aerogel were found to be 45.45mg/g and 35.71mg/g, respectively. The results indicated that silica aerogels modifi ed with amino functional groups can be used as an effi cient adsorbent in the removal of metal ions such as Pb(II) and Cd(II) from aqueous solutions.

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“…Considerable attention has been paid to the development of effective and low-cost adsorbents. Thus, studies have been done on the use of AW as alternative biosorbants for HM removal from the aqueous effluents (Tarley and Arruda 2004;Mohan and Pittman 2006;Karnitz Júnior et al 2010;Dos Santos et al 2011;Chiban et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Capability of some agricultural wastes for removing some heavy metals from polluted water stocked in combination with Nile tilapia, Oreochromis niloticus (L.)

Abdel‐Tawwab¹,

El-Sayed

Shady³

2017

Int Aquat Res

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Heavy metal (HM) pollution is one of the major problems that adversely affect the aquatic ecosystem and inhabiting biota. Heavy metals adsorption by low-cost adsorbents is one of the techniques used for HM removing from polluted water. In the present study, agricultural wastes (AW), i.e., rice straw, sugarcane bagasse, and maize stalks, were washed with distilled water, dried in a dry-oven, cut into small pieces (\0.5 cm long), and immersed at 1.0 g/L in aquaria containing synthetic mixture of lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn). Nile tilapia, Oreochromis niloticus (L.), fingerlings (25.2 ± 0.88 g) were stocked at a density of ten fish per 100-L aquarium for 72 h, during which fish were fed on a fish diet containing 25% crude protein ad libitum twice daily. Samples of water, AW, and fish were collected at different times to determine HM concentrations. The HM removal from polluted water was depending on the type of the metal ions, AW, and the contact time. However, HM concentrations in aquaria waters of all AW treatments decreased significantly by increasing contact time up to 24 h after which their concentrations were almost the same. Concentrations of waterborne Pb, Cd, Cu, and Zn in AW-containing aquaria were significantly lower than those of AW-free aquaria. The presence of any AW reduced significantly HM concentrations. In AW-free aquaria, HM-exposed fish accumulated more HM in their body than those reared in AWcontaining aquaria. The results of this experiment showed that all AW had the capability to remove HM levels from the polluted water and reduce their bioaccumulation in fish body. However, rice straw was the more efficient adsorbent for all metals.

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Biosorption of Pb(II) and Cd(II) ions by Agave sisalana (sisal fiber)

Cited by 74 publications

References 21 publications

Review of Eco-Friendly Biochar Used in the Removal of Trace Metals on Aqueous Phases

Review of Eco-Friendly Biochar Used in the Removal of Trace Metals on Aqueous Phases

Performance of silica aerogels modified with amino functional groups in PB(II) and CD(II) removal from aqueous solutions

Capability of some agricultural wastes for removing some heavy metals from polluted water stocked in combination with Nile tilapia, Oreochromis niloticus (L.)

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